Disk-sharpener.



W. G. SMITH.

DISK SHAHPENER.

APPLICATION FILED JAN.15,1913

1, 1 20,420, Patented Dec. 8, 1914.

I0 @fr f "Il THE MORRIS F'ErERS l". PHora 11H04 WASHING TON. D C

WILLIAM Gr. SMITH, 0F ENGLEWOOD, KANSAS.

DISK-SHARPENER.

Application filed January 15, 1913.

To cZZ whom it may concern Be it known that I, 1WILLIAM G. SMITH,citizen of the United States, residing at Englewood, in the county ofClark and State of Kansas, have invented certain new and usefulImprovements in Disk-Sharpeners, of which the following is aspecification.

rlhis invention relates to disk Sharpeners.

The primary object of the invention is to provide a sharpening devicefor cultivator disks which may be supported by the cultivator frame, thearrangement being such that the disk is supported adjacent thesharpening device in order to secure the proper sharpening of the same.

A further object of the invention is to provide a sharpening device inwhich the disk will be supported at the point where it is sharpened, theface of the disk remote from that which is sharpened being supported byrollers in order that the sharpening l.may be accomplished without unduefriction where the unsharpened face of the disk contacts with theholder.

A still further object of the invention is to provide a Sharpenersupporting mechanism which may be adjusted with respect to thecultivator frame in order to accommodate different size disks.`

Another object of the invention is to provide a holder for thesharpening device, the position of which may be reversed in order toContact with both faces of the disk or in instances where the disks arereversed.

In the drawings: Figure 1 is a plan view showinga portion of thecultivator frame; Fig. 2 is a section on the line 2-.2 of Fig. 1; Fig. 3is a section on the line 3-3 of Fig. 2; Fig. 4f is a perspective view ofone of the members which constitute the support; Fig. 5 is a horizontalsectional view taken on the line 5-5 of Fig. 3.

In the drawings. 10 designates the beam .of a cultivator. The shaft onwhich the disks 11 are mounted is disposed below this beam, whereby theperipheries of the disks pass beneath the beam.

The Sharpener consists of sections 12 and 13 which are bolted togetherat their terminals and at the points 14- and 15. Each of the members isformed with a straight bottom edge 16 and a curved top edge 17, theterminals 18 and 19 being reduced in thickness, as shown at 20, andapertured to receive bolts 21. It will be noted `by this Specication ofLetters Patent.

Patented Dec. 8, 1914..

Serial No. 742,307.

construction that when the members are secured together that theirterminals will be spaced, forming a socket for the extension 22 of theblock 23. This block 23 is secured to a beam 2st which is disposedparallel with the cultivator beam l0 and which is connected to said beamby the curved arms 25, the terminals 26 of saidl arms being cut-away asat 27 and bolted or otherwise secured to the beam 10. `The extension 22of the block 23 is apertured to receive the bolt 21, thereby forming ahinged connection between the members and the block.

The blocks 23 are formed with extensions 28 which embrace the beam 24Eand bolts 29 pass through the extensions 28, the block in this mannerbeing supported on the beam. While the block is supported againstmovement longitudinally of the beam, it will be noted that in adjustingthe members that the bolt may be loosened `and the block positioned atany desired point throughout the length of the beam. f

The member 12 is formed with an enlargement 30, the inner face of themember being provided with a recess 31 which receives the sharpeningchisel 32, the chisel being movable transversely of the member withinsaid recess. The chisel is provided with a shank portion 33 and isadjusted transversely of the member by means of a nut 34; screw threadedupon the outer extremity of the shank portion 33. The lower portion ofthe inside face 35 of the member 12 is curved throughout its length toconform to the curvature of the disk 11. The lower portion of the insideface 36 of the section 13 is also curved throughout its length toconform to the curvature of the disk, this construction effectuallysupporting the disk when engaged by the chisel without causing the diskto move longitudinally of its supporting lThe section 13 is provided atpoints adjacent the center with recesses 39 and 40 disposed in spacedrelation and extending transversely of the member. Bolts 4:71 and 42extend transversely through the member 13, said bolts extending throughthe recesses 39 and 40 and supporting rollers 13 and 117%., The rollersare disposed adjacent the lower edge 16 of the member and are arrangedon either side of the chisel 32. It will be noted by this constructionthat at the point Where the chisel bears against the disk that the faceof the disk remote from the chisel will be supported by the rollers, thedesired pressure on the disk at this particular point being secured,theI rollers extending beyond the inner face of' the member 13.

' It Will be noted that the portions of the device4 Which are subject toWear, that is, the .chiseland'the rollers, may be readily reneyved whenWorn, andv that the pressure on the disk While it is being sharpened isonly at thefactual point Where the chisel contacts'vvith the diskand'not throughout the entire length of the holder. lt will therefore beseen that the holder receives and supportsjv the disk, the lsharpeningbeing acv complished 4vviuthout distorting the disk or causing movementof the, vsame longitudinally of the shaftfon which it is mounted.Attention is called to the fact that the sharpening ot the disk may beaccurately regulated bytheV adjustment oi the chisel, and that as theysupporting member. is hingedly mounted it may be raised out of contactWith the diskif desired.

-When the disks are vreversed on the shaft, the members 12 and 13 may bereversed with respect 'to ythe block 23, accommodating thedisk'sregardless of their position on the disk supporting shaft. rlhefree ends 19 of the membersv arer disposed beneath the beam 10, thusbeing prevented from accidental rising out of position with respect tothe disk. It Will be clearly apparent that as the members are hingedlysupported they maybe'adjusted to various size disks, and that thesupporting structureV is` such as to permit the device to be placed oncultivators or disk plovvsy regardless of their construction. Will alsobe. seen that the constructionis such as may be easily andeconomicallymanufactured,` and. that the various parts may be-readilyassembled.

" Having thus,` described. my invention,-

vvhat I Vclaim asvneyvand desire to secure by Letters Patent is:

1. A Sharpener for disk cultivators comprising pivotally supportedmember formed in sections, the disk being disposed to `rotate betweenthe sections, an adjustable sharpening device vsupported lby one ot thesections, and rollers supported by the other section and contactingivith the disk on both sidesofV the sharpening device.

v2, A'disk sharpenerv 'for cultivators com prising a Vsupporting member,said supporting member being formed in sections, one of the sectionsbeing formed With-a recess, a chisel adjustably supported Within saidrecess, means` for moving said chisel transversely and longitudinally ofthe supporting member, rollers carried by the other section, saidrollers being disposed.l in spaced relation and arranged to contact withthe face of the disk remote from that with which the chisel contacts,the chisel contacting With the disk intermediate of the rollers.

3. A disk Sharpener for cultivators coinprising a supporting member,said member being formed in sections, the disk being received sectionsadjacent the disk being curved longitudinally to conform to the'shape ofthe disk, a sharpening member adjustably supported by one of the members'and contacting with one face of the disk, and rollers v supported bythe other member and contact,-v ing with the other tace of the disk. i

4,. A sharpener forv disk vcultivators comprising a supporting member,rollers mounted on 'said supportingY member in spaced relation, anvadjustable sharpening device carried by the member and disposedadjacent the rollers,the disk to be' sharpened traveling between therollers and said sharpening device, the rollers contacting with one faceof the disk, and the sharpening device With the other face, thesharpening device being active to the disk intermediate the rollers. f Y

5. A disk Sharpener including a supporting member, a roller carried bysaid' 'member, a chisel carried by the supporting member, means foradjusting the chiseltovvard or away `from the roller, and independentmeans for adjusting the `chisel transversely of the roller. A' i 6. Adisk Sharpener including a supporting member recessed to receive a disk,a roller carried by said member andy arranged to extend into therecess,a chisel carried by the supporting member, means for adjustingthe chisel toward or. away from the roller, and independent means foradjusting the chisel transversely of the roller. A

7. A disk Sharpener includingr a' supporting member, a roller carried bysaid member, said member having a recess *formed therein, a chiselmounted in said recess, means for adjusting vthefchiseltovvardf or avvayy from the roller,` and independent means for 4adjusting the chiseltransversely within the recess. 7 i

8. A disk Sharpener includingk a supporting member, a roller. carriedbylsaid membetween the sections, the faces of the ber',ythe Vinmnberhaving al recess formed f to adjust the chisel toward or away from Intestimony whereof I affix my signathe roller, and set screws carried bythe ture in presence of two witnesses.

member and extending into the recess formed therein to engage the headof the WILLIAM G' SMITH' [L 8'] 5 chisel, said screws being adapted toadjust Vitnesses:

the working face of the chisel transversely CEGIL W. NEWBY,

of the roller. E. N. MARTEL.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents,

i Washington, D. C.

